Synopsis

Type/Severity

Topic

The Red Hat Security Response Team has rated this update as havingimportant security impact. Common Vulnerability Scoring System (CVSS) basescores, which give detailed severity ratings, are available for eachvulnerability from the CVE links in the References section.

An invalid memory management flaw was found in the way the FreeType fontengine processed font files. If a user loaded a carefully-crafted font filewith an application linked against FreeType, it could cause the applicationto crash or, possibly, execute arbitrary code with the privileges of theuser running the application. (CVE-2010-2498)

An integer overflow flaw was found in the way the FreeType font engineprocessed font files. If a user loaded a carefully-crafted font file withan application linked against FreeType, it could cause the application tocrash or, possibly, execute arbitrary code with the privileges of the userrunning the application. (CVE-2010-2500)

Several buffer overflow flaws were found in the way the FreeType fontengine processed font files. If a user loaded a carefully-crafted font filewith an application linked against FreeType, it could cause the applicationto crash or, possibly, execute arbitrary code with the privileges of theuser running the application. (CVE-2010-2499, CVE-2010-2519)

Several buffer overflow flaws were found in the FreeType demo applications.If a user loaded a carefully-crafted font file with a demo application, itcould cause the application to crash or, possibly, execute arbitrary codewith the privileges of the user running the application. (CVE-2010-2527,CVE-2010-2541)

Red Hat would like to thank Robert Swiecki of the Google Security Team forthe discovery of the CVE-2010-2498, CVE-2010-2500, CVE-2010-2499,CVE-2010-2519, and CVE-2010-2527 issues.

Note: All of the issues in this erratum only affect the FreeType 2 fontengine.

Users are advised to upgrade to these updated packages, which containbackported patches to correct these issues. The X server must be restarted(log out, then log back in) for this update to take effect.

Solution

Before applying this update, make sure all previously-released erratarelevant to your system have been applied.

This update is available via the Red Hat Network. Details on how touse the Red Hat Network to apply this update are available athttp://kbase.redhat.com/faq/docs/DOC-11259